Cargo-discharging apparatus for ships



Dec. 30, 1930. L. A. STINSON 1,787,025

CARGO DISCHARGING APPARATUS FOR SHIPS Filed March 30, 1928 4 Sheets-Sheet. l

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5206557 Lamb's H. Stimson Patented Dec. 30, 1930 LEWIS ANDREW STINSON, OF OAK PARK, ILLINOIS GARGO-DISGHARGING APPARATUS FOR SHIPS Application filed March 30,

My invention relates to cargo discharging apparatus used with such articles as sand,

grain, coal and other similar material which may be handled'by scoops and elevators.

The object of my invention is to provide a material on a dock or in an adjoining vessel or inother desirable places of deposit alongside the vessel.

The principal object of the invention is to provide an apparatus having the detailed merits of construction and operation as will be described and set forth herein, the principal feature being to have an apparatus that may be easily handled and controlled and located in any normal vessel adapted to carry the class of material above mentioned.

Reference will be had to the accompanying drawings in which Fig. 1 is a longitudinal sectional elevation on line 1-1 of Fig. 8 through the middle portion of the ship 30 wherein the apparatus is located.

Fig. 2 is a transverse sectional elevation on line 2-2 of Fig. 1.

Fig. 8 is a plan sectional View on line 8-8 of Fig. 1.

Fig. 4 is a sectional elevation similar to that of Fig. 1 but on a smaller scale and showing the transverse conveyor in neutral posi tion being the position whereatthe vessel is in transit and not engaged in either loading or discharging its cargo.

Fig. 5 is a plan section on line 5-5 of Fig. 4. r i

Fig. 6 is a plan detail on line 66 of Fig. 4 showing the driving means for the belt of the lateral conveyor.

In the drawings 1 indicates the floor of the hold for the cargo being any suitable floor adapted to carry a cargo of material such as sand, grain, coal, etc. as above mentioned.

Located a-midship of the vessel there are 1928. Serial No. 265,966.

hoppers 2 and 8 and leading up from the floor to these hoppers there are the inclined chuteways 4 and 5 which are provided with side deflecting walls 6 and 7.

The material is gathered from each end of the vessel and discharged intothe hoppers 2 and 8 through the medium of drag line scoops or shovels 8 and 9 which are operated by cables 10 and 11 running over sheaves at locations 12 and 18 and'then over sheaves at o locations 14 and 15 to and over two winding drums 16 and 17 (see Fig. 8), which drums are actuated by steam engines at locations 18 and 19 by operators located at these engines which control the winding drums. The re- (15 turn movement of the scoops 8 and 9 is brought about by cables 20 and 21 running over sheaves at the locations at the outer ends of the hold as indicated by 22 (see Fig. 8). The cables 20 and 21 pass over sheaves at locations 28 and 24 in close proximity to the sheave locations 14 ando15 and the cables 20 and 21 are wound upon drums- 25 and 26 which drums are controlled by engines 18 and 19 in the, same manner as the drums 16 and 17 and simultaneously therewith, so that the operators at engines 18 and 19 are enabled by the scoops or buckets 8 and 9 to bring by power the cargo from each end of the hold of the vessel and discharge it into the hoppers 2 and 8. Sufficient slack is provided on the reverse movement of the cables connected to the scoops to allow the scoops to dump themselves automatically on their arrival at the proper position over the hoppers 2 and8. R5

The hoppers 2 and 8 discharge their contents through their open bottoms 27 and' 28 onto aljigging table 29 extending underneath theopenings 27 and 28 and mounted on little rollers 80 and connected at a wrist 96 pin 81 to a pitman 82 toa crank pin 88 of a shaft 84 upon which there is a gear 85 driven by a gear 86 mounted to the shaft 87 (see Fig. 8) driven by a bevel gear 88 from a bevel gear 91 on a shaft 92 upon which there are 95 sprockets 42 which are engaged and driven by the elevator bucket chain 41.

In the bottom of the table 29 there is a central aperture 89 shown only in dotted lines in Fig. 1. This aperture is locat d over a path:

and supported in the framework of the apparatus and this elevator bucket conveyor" gathers the material that falls through the jigging table 29 and elevates it up and discharges it into a hopper 46 (see Fig. 2) located above the deck in suitable framework of the aparatus.

The chain 41 with its buckets 40' is driven by any suitable sourceof power but it is here shown as being driven by a steam engine located at 47 (see Fig. 2) and drivinga belt or chain 48 driving a pulley or sprocket 60 and driving a shaft 49 upon which there is a sprocket 5O driving a chain '51 which runs over and drives a sprocket 61 on a shaft 52 which shaft is geared to drive the shaft 53 which carries sprockets 45 on the shaft 53 which drives the elevator chain 41 and its buckets 40 thus delivering the material into the hopper 46. 'The hopper 46 discharges onto a conveyor belt 54 carried on a pulley 94 on a shaft 55 and this belt is trained over a drum 56 on a shaft 57 and delivers the material that it receives from the hopper 46 into a hopper 58 of a transverse conveyor (see Fig. 1). A deflecting or directing spout 59 directs the material to be discharged directly into the hopper 58 and prevents its accidental dislodgment. The conveyor belt 54 is driven through the medium of the pulley or sprocket 60 on shaft 49 driven as before described, and this shaft 49 carries a bevel gear 62 which drives a bevel gear 63 on a shaft 64 as shown in detail in Fig. 5 upon which there is a chain sprocket 65 which drives a chain 66 which by the medium of a sprocket drives the shaft 57 which carries and drives the conveyor belt 54.

The hopper 58 is mounted on the framework of a lateral or horizontal conveyor which is supported at one end over a pivot center 68 (see Fig. 1) and about which pivot center the body of the conveyor is swung from the position over the deck of the vessel as shown by Fig. 4 around to any transverse or lateral position desired across amidships for discharging the material at the dock side or any other side position, the hopper 58 being directly above the pivot center 68 which makes immaterial the positionof the horizontal conveyor as a whole indicated by 69. The conveyor'is suspended, as it were, from a tower framework amidships indicated 70 through the medium of a series of sheaves 71, 72, and 73 over which is trained cables 7 4 running over sheaves 75, 76, and 77 and 78 at the tower framework. These cables run down from the sheaves 78 to sheaves 79 to a winding drum 8O controlled by an engine indicated by 81' (see Fig. 1)'. The conveyor 69 is mounted over the vertical pivot 68 on a hinge cross shaft 82"(see Fig. 1')- which permits the conveyor 69 through the medium of its supporting cables 74 and sheaves as described to permit the operator to raise and lower the outer end of the conveyor 69 around the shaft 82 as a pivot for discharging the material either upward or downward from the level of the deck position at the location of the pivot center 68 and the sheave locations to 77 inclusive are so located over the pivot center 68 as to operate the horizontal conveyor 69 in any position of swing of the conveyor as relates to the length or side of the ship that may be desired for an unloading position of the material carried by the vessel and when the conveyor 69 is not in use, it is located over the deck of the vessel as indicated by Fig. 4 and allowed to rest on suitable stops or supports 83 and 84 (see Fig. 4). The conveyor 69 is composed primarily of a conveyor belt 85 running over suitable, supporting rollers 86 on the load side ofthe conveyor and other rollers 87 on the return side and is trained over a roller 88 at the outer end and driven by a roller 89 at the inner end on a shaft 90 (see Figs. 1 and 6). The shaft 970 is driven by a chain to a sprocket 96 on the aforementioned shaft 82 which is driven by a bevel gear 97 driven by a bevel gear 98 on a vertical shaft 99 driven by a bevel gear 100 from a bevel gear 101 on a shaft 102 driven by a sprocket 103 driven by a chain 104 running up to a sprocket 105 on the aforementioned shaft'49 driven as before described.

The sheaves at location 75 are mounted in a hinge block that permits the sheaves to turn parallel with the conveyor 69 using the drop between 76 and 77 as being the direct pivot center in line with the pivot center 68 (see Fig. 1). Thus as the conveyor 69 is moved about the sheaves 75 travel with it in the hinge supporting block which are connected to the tower 70.

What I claim is 1. In combination with a cargo vessel, a pair of hoppers disposed side by side adj oining one another longitudinally above the floor of the vessel intermediate the ends thereof, longitudinal inclined chuteways leading from the cargo floor to said hoppers, means for drawing the cargo material from opposite ends of the vessel up said chuteways into said hoppers, a horizontally disposed longitudinally vibrating table beneath the discharge orifices of said hoppers in the space between said chuteways having an outlet opening therein intermediate its ends and adapted to receive the material from the discharge orifices of the hoppers and discharge it downwardly at a point intermediate the same, an elevator for gathering the material from underneath the-said table, said elevator traveling transversely of the hold' of the vessel underneath the table and over to and up the .poWer scoops adapted to gather material from opposite ends of the vessel and deposit same in said hoppers, an elevating conveyor for gathering the material out from under said hoppers, said elevator conveyor being disposed substantially amidships and traveling transversely across the hold of the vessel beneath said hoppers in the space between said chuteways and up the side of the hold and above and over the deck of the vessel, a hopper located above the deck of the vessel underneath the said elevating conveyor to receive the material therefrom, a conveyor traveling longitudinally of the vessel and arranged to receive at one end thereof the material from said last mentioned hopper, and a main conveyor adapted to receive material from said last mentioned conveyor and deliver the same to a place of deposit alongside of the vessel, said main conveyor being pivotally supported at one end substantially amidships for lateral adjustment.

Signed at Chicago, in the county of Cook and State of Illinois, this 20th day of March,

LEWIS ANDREW STINSON. 

